![]() With a switch I can select the mike or the ‘normal’ input. 2.0 03/15/15 (c) 2015, Budd Churchward - WB7FHC This is an Open Source Project Search YouTube for 'WB7FHC' to see several videos of this project as it was developed. The schematic (made by Joost, PE1RCD) can be downloaded here.įor easy use I added a electret microphone and mount it in the back of the enclosure. After that, the frequency range was from 580-1200 Hz, much more in common to a CW signal.Īdded to the decoder was a key function with a 4060 side-tone generator and a LM386N amplifier. So a changed the resistor in series with the 22K potmeter from 3K3 to 10K. I found that the range was from 800-3300 Hz which I find to large. 2014 Final built version of my Homebrew Arduino automatic CW (Morse) Decoder using WB7FHC Open-Source code, an. The program worked fine but the Tone tune was very small. Homebrew Cheap Arduino CW (Morse) Decoder - Final Version. I tested it with an Arduino program called ‘cw_foxhunt’ which you can find here. I liked the project and built it in a home made enclosure made from PCB. I am going to start by building the Danish solution next.In the VERON magazine of November 2015 there was a description of a CW Morse decoder built around an Arduino Nano.
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